	//将form转为AJAX提交
	function ajaxSubmit(frm, fn) {
	    var dataPara = getFormJson(frm);
	    $.ajax({
	        url: frm.action,
	        type: frm.method,
	        data: dataPara,
	        dataType:"text",
	        success: fn
	    });
	}

	//将form中的值转换为键值对。
	function getFormJson(frm) {
	    var o = {};
	    var a = $(frm).serializeArray();
	    $.each(a, function () {
	        if (o[this.name] !== undefined) {
	            if (!o[this.name].push) {
	                o[this.name] = [o[this.name]];
	            }
	            o[this.name].push(this.value || '');
	        } else {
	            o[this.name] = this.value || '';
	        }
	    });

	    return o;
	}